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a man collects water using a fishing pole and can
World’s Rivers Rife with Drugs: Study
Levels of pharmaceuticals considered unsafe for aquatic organisms were found at more than one-quarter of sampling sites.
World’s Rivers Rife with Drugs: Study
World’s Rivers Rife with Drugs: Study

Levels of pharmaceuticals considered unsafe for aquatic organisms were found at more than one-quarter of sampling sites.

Levels of pharmaceuticals considered unsafe for aquatic organisms were found at more than one-quarter of sampling sites.

caffeine

How Plants Evolved Different Ways to Make Caffeine
Ruth Williams | Sep 20, 2016 | 3 min read
Caffeine-producing plants use three different biochemical pathways and two different enzyme families to make the same molecule.
Buzzed Honeybees
Karen Zusi | Oct 20, 2015 | 1 min read
Caffeinated nectar makes bees more loyal to a food source, even when foraging there is suboptimal.
How Caffeine Affects the Body Clock
Ruth Williams | Sep 16, 2015 | 3 min read
Evening consumption of the drug leads human circadian rhythms to lag.
Capsule Reviews
Bob Grant | Jun 1, 2014 | 3 min read
Proof, Caffeinated, A Sting in the Tale, and The Insect Cookbook
Caffeine Boosts Memory Consolidation?
Tracy Vence | Jan 13, 2014 | 1 min read
A new study purports to show that post-learning caffeine consumption can improve memory, but some scientists are not convinced.
Killer Cups?
Kerry Grens | Aug 16, 2013 | 2 min read
Heavy coffee drinkers under 55 are more likely to die sooner, a study shows.
Buzzed Honeybees
Kate Yandell | Mar 11, 2013 | 2 min read
The pollinators are more likely to recall flowers that offer them a caffeine reward.
Caffeine Affects Estrogen Levels
Megan Scudellari | Jan 26, 2012 | 1 min read
Moderate caffeine intake is associated with higher estrogen levels for Asians, but lower levels for whites.
How Caffeine Fights Cancer
Jef Akst | Aug 15, 2011 | 3 min read
Caffeinated drinks may help prevent skin cancer by inhibiting a DNA repair pathway, thus killing potentially precancerous cells.
Bacteria live on caffeine
Tia Ghose | Jun 10, 2011 | 1 min read
Researchers discover that some bugs crave the buzz of caffeine.
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